Antifriction mechanism as applied to bogie-trucks of railway-cars or similar vehicles.



P T No 764,428 J; B. COOPER. A BNTED JULY 5, 1904 ANTIFRIGTION MECHANISM AS APPLIED T0 BOGIE TRUCKS 0P RAILWAY CARS 0R $IMILAR VEHICLES.

APPLICATION FILED JAN. 3, 1904.

N0 MODEL.

Patented July 5, 1904.

UNITED STATES PATENT OEE cE.

JOHN EDWARD COOPER, OF STRATFORD, LONDON, ENG-LAND.

ANTIFRICTION MECHANISM AS APPLIED T0 BOGlE-TRUCKS 0F RAILWAY-CARS 0R SIMILAR VEHICLES.

SPECIFICATION forming part of Letters Patent No. 764,428, dated July 5, 1904.

Application filed January 8, 1904;.

To all whom it may concern.-

Be it known that I, JOHN EDWARD CoornR, a subject of the King of Great Britain and Ireland, residing at 9 Chatsworth road, Stratford, London, England, have invented certain new and useful Improvements in Connection with Antifriction Mechanism as Applied to Bogie- Trucks of Railway-Cars or Similar Vehicles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the 7 same.

This invention relates to antifriction mechanism as applied to the axle-shafts of bogietrucks of railway-cars and similar vehicles; and it consists in new and improved combinations and arrangements of mechanism relating thereto.

According to this invention provision is made for combining with antifriction mechanism of the kind hereinafter described the usual or other suitably-devised form of springs on which to mount the car or body of the vehicle, thereby reducing shocks and vibrations to a minimum, and thus obtaining a more perfeet result from the antifriction mechanism by which the transmission is facilitated of heavier loads with reference to the power required to draw or propel them.

Having thus set forth the main object and utility of this invention, I will proceed to further explain the same by referring to the accompanying drawings, in which the car or passenger compartment or hold of the bogietruck is entirely omitted as being unnecessary for the purpose of explaining the invention, and such outlines of the underframe as are shown are to be taken as representative of bogie-trucks generally to which this invention is applicable in respect of those parts with which the antifriction mechanism is immediately connected.

m Figure 1 illustrates in side elevation those parts of a bogie-truck in which the improvements constitutingmy invention are embodied, Fig. 2 being a half-plan View with the up per frame removed.

In the application of my invention to bogietrucks the horn-plates a are fixed in or .form

Serial No. 188,224:- (No model.)

part of the under-frame ct of the truck, but the guide-boxes b and 0, with the axles b and 0 journaled therein, are free to slide up and down in the horn-plates in an exact relation to the movement of the springs (Z, and are thus free from shocks or jolts which would be detrimental to the proper working of the antifrietion mechanism. The main axle c is carried out beyond the hub of the wheel, so that the antifriction wheels or disks e a, which are provided in duplicate with the horn-plate a between, as shown more especially in Fig. 2, are in rolling contact with the main axle on either side of the horn-plate journal-boxes Z) and c, which journal-boxes are accurately adjusted in the horn-plates a to insure that they share the same vertical movement in conjunction with the provision that they be kept the same distance apart in all movements of the springs.

' In this construction an equalizing-bar f is carried over or hooked onto the top of each split axle-box b, by which means the weight is put onto the antifriction-axles h. A strap g is connected to the bottom side of the equalizing-bar, also to the outer ends thereof by means of screw-bolts both at the top and bottom, the bolts in the top end passing through angle-iron lugs 7L. By means of these angloiron lugs and set-screws I am able to hold the lower part of the top axle-box Z) in the requisite position. In the bottom part of the strap g I provide two adjustable set-screws a. which are used to keep the bottom axle-box 0 close up to the main axle a. By this means I am enabled to keep the two axles 7) and o in rolling contact. The equalizing-bar f supports the whole weight of the vehicle, which may be mounted on springs (Z of a volute or spiral character at each end, as shown, or, if necessary, elliptical springs may be arranged crosswise, the equalizing-bar passing over the top axle-boxes and hung inside the hornplates.

What I claim, and desire to secure by Letters Patent of the United States, is

1. In a truck, the combination of the frame provided with downwardly-extending hornplates, a main and an antifriction axle journaled in each of said horn-plates, an equalizing-bar extending over such antifrictionaxles, and springs between said equalizing-bar and said frame, substantially as described.

2. In a truck, the combination of the truckframe provided with downwardly-extending horn-plates, bearings for a main axle and an antifriction-axle located in each of said hornplates, a main and an antifriction axle, the latter being provided with antifriction-w heels bearing on said main axle, means for keeping said axles in the proper relation to each other, equalizing-bars passing over said antifrictionaxles, and springs between said equalizingbars and said frame, substantially as described.

3. In a truck, the combination of a frame provided with downwardly-extending hornplates, bearings fora main axle and for an antifriction-axle located in each of said hornplates, a main axle and an antifriction-axle journaled in said bearings, the latter being provided with antifriction-wheels bearing upon said main wheels, equalizing-bars passing over said antifriction-axles, springs between said equalizing-bars and said frame, lugs and bolts for securing the bearing of said antifriction-axles to said equalizing-bars, and straps and adjusting-bolts for securing the bearings of said main axles to said equalizingbars, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN EDWARD COOPER.

Witnesses:

DOUGLAS P. WENCKWORTH, CHAS. R. COWLEY. 

